import java.util.Scanner;

class KY2_3{
    public static void main(String[] args) {
        int c;
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入今天的温度");
        c = sc.nextInt();
        switch (c<10?1:(c<25?2:(c<35?3:4))) {
            case 1 -> System.out.println(" "+c+"℃ 有点冷。要多穿衣服。");
            case 2 -> System.out.println(" "+c+"℃ 正合适。出去玩吧。");
            case 3 -> System.out.println(" "+c+"℃ 有点热。");
            default -> System.out.println(" "+c+"℃ 太热了!开空调。");
        }
    }
}
